schedule an appointment

I received my gateway equipment in the mail 12/5/2024, with no instructions might I add. I am 79 years old and no nothing about downloading an app. My daughter came over 12/7/24 and downloaded the app and attempted to get internet service. No success! For 3 hours she was on the app chatting with someone, who disconnected the call and still no service. Called technical support and spoke with someone and they began to walk me through the set-up, and once they realized they were not going to be able to get me set-up, they disconnected the call with no warning....is that taught in training...."if you cannot resolve just hang up!" The app said if have not gotten 3 solid lights, you should schedule an appointment, but it never takes you there. The equipment that was sent in looked greatly used, the PW had been scratched through, and it was rusted on the bottom. I am not for sure if the equipment was refurbished but that may have been the cause of not being able to get a connection. I called in several times to try to schedule an appointment and never did. Thought it may have been due to it being on a Saturday, so first thing today I attempted to call again and still not able to talk to anyone. I was told I would get a text with the link to schedule an appointment, and a text with a link to speak to a live representative, it has been 11 minutes and no link. If this is a sign of what to expect in dealing with XFINITY, maybe I need to cancel before getting started. I just want to get my internet started, please tell me what number to call to schedule an appointment to set up gateway.